Granted Patent
Utility
US 6,607,361 · App. 09/787,989
Pumping method and device
Inventors:
Robert Kotter, Markus Ficht
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Jul 17, 2001
Inventors
Robert Kotter
Markus Ficht
Assignee (at issue)
Bombardier Motor Corporation of America
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.